Dark Matter production from relativistic bubble walls. (arXiv:2101.05721v1 [hep-ph])
<a href="http://arxiv.org/find/hep-ph/1/au:+Azatov_A/0/1/0/all/0/1">Aleksandr Azatov</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Vanvlasselaer_M/0/1/0/all/0/1">Miguel Vanvlasselaer</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Yin_W/0/1/0/all/0/1">Wen Yin</a>
In this paper we present a novel mechanism for producing the observed Dark
Matter(DM) relic abundance during the First Order Phase Transition (FOPT) in
the early universe. We show that the bubble expansion with ultra-relativistic
velocities can lead to the abundance of DM particles with masses much larger
than the scale of the transition. We study this non-thermal production
mechanism in the context of a generic phase transition and the electroweak
phase transition. The application of the mechanism to the Higgs portal DM as
well as the signal in the Stochastic Gravitational Background are discussed.
In this paper we present a novel mechanism for producing the observed Dark
Matter(DM) relic abundance during the First Order Phase Transition (FOPT) in
the early universe. We show that the bubble expansion with ultra-relativistic
velocities can lead to the abundance of DM particles with masses much larger
than the scale of the transition. We study this non-thermal production
mechanism in the context of a generic phase transition and the electroweak
phase transition. The application of the mechanism to the Higgs portal DM as
well as the signal in the Stochastic Gravitational Background are discussed.
http://arxiv.org/icons/sfx.gif
